The yellow lever part of the product image broke only one easily when removing the socket. There was a metal piece on the inside of the socket with rust and 10 mm socket to close the inside of the socket.
I like the tool of SK11 because it also has durability and can be used freely without price. Easy to use clip. It is a pity that the size number is difficult to see. Compared with KTC, there is a little play, but there is also the advantage of dodging obstacles with a little angle like a ball point in play.
I use it with a spin type handle and a set of koken. 6.35 sq is required for use and is of sufficient quality. However, as a set content, I feel that it is enough for "5, 5, 6, 7, 8 mm". I think that I use 9.5 sq or 12.7 sq for more size, and it is the best if it is half price in the above set.